If you upgrade to the pre-release V7.3 software, PLEASE make sure you also upgrade your *.cal files. Instructions for updating the *.cal files are included on this page here:
http://www.efilive.com/downloads/downloads_730.html
See steps: 10, 11 and 12.

The actual *.cal files can be downloaded from here:
http://www.efilive.com/downloads/downloads_os.html

When you are viewing a *.tun file you can verify that you are using the correct *.cal file version (for EFILive V7.3) by opening the "PCM details" window (Ctrl+F2). The calibration file version should be 7.61 or later. If the version is less than that or displayed as N/A you MUST update your *.cal files.

Upgrading your *.cal files will prevent issues such as:
{B3601} being incorrectly set to 1.00 instead of 14.63
and
{B3612}, {B3614}, {B3919}, and {B3620} being incorrectly reduced by 32 degrees F (to 252 from 284) when displayed in DegF.

Regards
Paul